I'll take a look at these Lenovos. And some new device?

@MartinK: it seems not to be the case, according to notebookcheck. [1]
Under load maximal of 37.8 dB was measured and the temperature reached maximal 44 degrees in the load test.

[1] http://www.notebookcheck.net/Acer-As....136078.0.html